Ethereum: Non-standard Tx with ambiguous OP codes: examples

Ethereum Transaction Analysis: Understanding Obscure OP Codes

As a Python developer, you are probably familiar with the unique transaction format of the Ethereum blockchain. However, when dealing with transactions that contain non-standard TXs (transactions) and obscure OP codes, it can be challenging to understand them.

In this article, we will delve into the world of Ethereum transactions and explore some examples of non-standard TXs with obscure OP codes. We will also provide explanations and insights to help you better understand these mysterious blocks.

**Ethereum Transaction (TX) is available for download.

A transaction on the Ethereum blockchain consists of several components:

• Header: The header contains metadata about the transaction, such as the sender’s public address, the recipient’s public address, and the gas limit.

• Body: The main content contains the actual data that is transferred between accounts.

• Witness: A witness is a small value added to the body of a transaction to verify its correctness.

Understanding OP Codes

OP codes are an important part of Ethereum transactions. They are instructions that can be executed by the Ethereum Virtual Machine (EVM). Here are some common OP codes:

• 0x00: No operation

• 0x01: Push constant

• 0x02: Push variable

• 0x03: Call function

• 0x04: Subtraction

• 0x05: Multiplication

• 0x06: Division

• 0x07: Modulus

• 0x08: Get field offset

• 0x09: Set field offset

Examples of non-standard TX with ambiguous OP codes

Let’s take the example you provided:

scriptPubKey: ".

txHash: 77822fd6663c665104119cb7635352756dfc50da76a92d417ec1a12c518fad69"

Here are some examples of non-standard TXs with obscure OP codes that may give you some insight into the workings of this mysterious block:

• 0x00000001: This OP code is used to push a constant value onto the stack. In this case, it is likely to be a value representing the transaction hash (e.g., the hexadecimal representation of the block number).

• 0x00000004: This OP code is used to subtract one value from another. The operands are likely passed as constants.

• 0x00000003: This OP code is used to call a function. In this case, it is likely to call the `tx.origin'' field, which contains information about the origin of the transaction.

Insights and Tips

When working with non-standard TXs with unclear OP codes, keep in mind:

• Always checkscriptPubKeyto understand what data is being sent.

• ChecktxHash` by checking its hexadecimal representation or using a tool like Etherscan.

• When working with transactions, it is important to understand the roles and values ​​involved.

By analyzing these examples and understanding the OP codes, you will be better prepared to handle more complex Ethereum transactions in your Python code. Happy analyzing!